Side brush



FIG. 1 is a front elevation view of a side brush showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an overhead perspective view thereof;

FIG. 7 is a bottom perspective view thereof; and,

FIG. 8 is an overhead perspective view thereof with bristles shown.

The broken line showing of side brush is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a side brush, as shown and described. 